
Sökresultat:
3292 Uppsatser om Air quality - Sida 60 av 220
Naturvärden i Killingeskogen : Biologisk mångfald och friluftsliv
Killingen is an area situated on an island called Resarö in the municipality of Vaxholm. The areais covered with forests with a varied topography and a mosaic of environments. The municipalitywants to keep the area unexploited, for recreational purposes but what are the natural values inthe forests? The survey concluded that a mosaic of nature types had high values and could behosts for vulnerable species.As part of the study, measures that will improve the quality of the paths and bathing areas for thelocal population was proposed as well as means to heighten or preserve the natural values in thearea..
BI M i förvaltningsskedet med avseende på konstruktion.
Phosphate is a used as a surface treatment method which is used for various purposes in the industry. In this case, phosphate coated wire is used in the processes to achieve a desirable outcome. The reason to why phosphate coated wire is used in the production process is because phosphate acts as an accumulator, where it stabilizes the lubricant on the surface of the wire. Lubrication is important because it plays a major role in the roll quality and characterizes important benefits regarding the outcome.Currently, SKF has to wash away all phosphates residues after extrusion process in an operation called tumbling. The main reason for this is simply because the surface has to be completely free from lubricants and coatings till the next step of process.
Judisk nationalism? : En idéhistorisk analys av Theodor Herzi och dennes verk Judestaten
The level of increased central government that we have experienced during the last decades in school, for the purpose of increasing equality and to adapt the Swedish school to a certain international standard, clearly shows that increased control scarcely leads to improvement.The aim of this paper is to examine whether teachers believe that national tests contribute to equivalent assessment and increased goal attainment. Furthermore the teachers? attitude towards and work with national tests is described. The paper is written from a school improvement perspective, where good examples from current research on what creates increased quality in school meaning increased goal attainment and equivalent assessment are related to research on school effectiveness and increased testing in schools. The study builds upon a quantitative survey among teachers in upper primary - and secondary school in a medium-sized municipality in Sweden.The result shows that the teachers have a somewhat more positive than negative attitude towards national tests, as a whole.
Kaliumgödsling på torvmark - effekt på tillväxten hos planterade granar (Picea abies)
Peat lands are a great potential resource for increased forest growth in Sweden, there are approximately 6.5 million hectares of peat lands, whereof around 70% produce less wood than one m3sk/ha and year and are therefore classed as forest waste land. There are over 200 000 hectares of peat land that is already drained and wooded, and that may be suitable for fertilization. Forest production on peat soils usually requires drainage and fertilization. Dewatering requires ditching the area, so that the roots can have access to oxygen. Nitrogen is often abundant in the peat but other nutrients; especially potassium is in short supply. The purpose of this work was to examine the effects of potassium fertilization on the growth of spruces that were planted on drained peat land and how different amount of fertilizers affects the growth. Potassium deficiency is strongly growth inhibiting, since potassium is important for substance transport in the tree. Potassium is also important for the carbohydrate formation, and because increasing the sugar content of the cells constitutes a lower freezing temperature does potassium availability in the soil play a major role in the winter resistance of many species. Potassium is not found in any organic compounds in the tree, but is present in cell and tissue fluids. A fertilization trial was started in 1978 in Siljansfors Experimental Forest. The plots in the experiment were fertilized with different amounts of potassium and one plot was left without fertilization. All plots that were fertilized with potassium grew considerably better than the unfertilized plot. The difference in production between the unfertilized plot and the plot that received the most potassium was 7.2 m3sk/ha and year. The unfertilized plot can still be classified as waste land. The theoretical production capacity was estimated using a Swedish system for site quality estimation of wetlands after ditching (dikningsbonitering). The plot with most potassium produced after fertilizationaproximately in level with theoretical estimations. Key words: Peat land, Fertilization, Ditching, Growth, site quality..
Att bygga en stamdatabas för gotländsk tall
Today's Swedish large-scale forestry uses almost exclusively computer-aided bucking. It allows the harvester computer, using an optimisation price list (steering price list), to maximize the value of each tree. The optimisation price list can be adjusted so that the industry gets the raw material it demands from the forest.
There are various simulation programs that can be used when constructing a optimisation price list. The simulation program merchandise a database of stem shapes using a given price list and mimics a harvester's work. To get the demanded raw material for the industry it is important to use a well-adjusted optimisation price list.
?Utredning av fosfatets inverkan vid pressning av rullar i LRQ MEDIUM BEARINGS
Phosphate is a used as a surface treatment method which is used for various purposes in the industry. In this case, phosphate coated wire is used in the processes to achieve a desirable outcome. The reason to why phosphate coated wire is used in the production process is because phosphate acts as an accumulator, where it stabilizes the lubricant on the surface of the wire. Lubrication is important because it plays a major role in the roll quality and characterizes important benefits regarding the outcome.Currently, SKF has to wash away all phosphates residues after extrusion process in an operation called tumbling. The main reason for this is simply because the surface has to be completely free from lubricants and coatings till the next step of process.
Ett elevperspektiv på sex- och samlevnadsundervisning i grundskolan : En retrospektiv enkätstudie bland gymnasielever
Public health is a concern of many important areas of society and it is therefore of great importance to examine and expand the goals of public health work within different sectors, e.g., school. Sexually transmitted diseases, sexual violence and mental health problems related to sexual orientation are some of the public health problems in society today. Throughout childhood and teenage years, norms and attitudes regarding sexuality and coexistence are formed, which means that school is an important arena when it comes to creating proficient conditions for coexistence and sexual health. The quality of sex and coexistence education in Swedish schools differs in quality; for content and magnitude vary greatly among schools. It is, therefore, of interest to study how students experience sex and coexistence education, like prioritizations and desires.
Crossmedia & Storytelling i Marknadsföringssyfte
This paper contains a study where we apply cross media and storytelling into the design process of a practical commercial campaign. The purpose is to learn more and deeper by using cross media and the ideal of storytelling practical. We applied a qualitative method for research of the project to provide a high-quality empirical work. The result shows that by using well-structured story early in the design process you will easily succeed with your cross media design..
Leva med en kronisk sjukdom : En litteraturöversikt om inflammatorisk tarmsjukdom och hälsorelaterad livskvalitet
Bakgrund: Inflammatorisk tarmsjukdom (IBD) inkluderar ulcerös kolit och Crohns sjukdom. De är kroniska och uppkommer i skov då tarmslemhinnan blir inflammerad och sårig vilket ger en komplex symtombild med akuta diarréer, rektalblödning och buksmärtor. Behandlingen går ut på att minska symtom och förebygga uppkomst av skov. Då dessa sjukdomar påverkar det dagliga livet så påverkas också den individuella hälsorelaterade livskvaliteten, vilket mäter den fysiska, psykiska och sociala aspekten av ett hälsoproblem.Syfte: Syftet var att beskriva upplevelsen av hälsorelaterad livskvalitet hos personer med inflammatorisk tarmsjukdom.Metod: En litteraturöversikt har gjorts där tolv vetenskapliga artiklar har utgjort grunden till resultatet och skapat en översikt på befintlig forskning. De har lästs, sammanfattats och analyserats där likheter och skillnader har hittats och teman bildats.Resultat: Resultatets fyra huvudteman är Fysisk funktion, Psykisk funktion, Social funktion och Att återställa sin livskvalitet.
Prestations- och kvalitetsstudie av maskiner för rensning av skogsdiken
Ditch cleaning is increasingly important in Swedish forestry. This study compare different concepts concerning machinery, namely two general-purpose excavators of different sizes, 8 tonnes and 15 tonnes, versus a dedicated machine constructed solely to deal with ditch-cleaning. The machines were tested on rough as well as on gentle terrain and on open terrain as well as in young stands in connection with thinning. The conclusions were that the excavators are more versatile and have greater capacity than the dedicated machine, while the latter excels in quality of work. Interestingly, there was no significant difference in performance between the both excavators..
Opera i Stockholm, Stadsgårdskajen
The report is about efficiency of a current production group where there is no clear production flow and there are some buffers between the operations. The efficiency is done with the help of a tool that is calledWork process of flow production which is used by Atlas Copco CTO. The most obviously results are that the lead time drops from 25 hours to 425 minutes and that the balancing loss decreases from 85 % to 8 %. The report focus on decreasing transports, decreasing buffers, more reliability in lead time and quality. And a more stimulating labour content for the workers is another result..
Tidig postoperativ övervakning av smådjur : förekomst av standardiserade rutiner
Background. Anesthetic-related death in small animal anesthesia is about ten times more common than in human anesthesia. Recent research identifies the early postoperative period as particularly risky and highlights the need for regular and careful monitoring of the veterinary patient during this period.
Objective. The aims of this study were to investigate whether there are standard procedures in terms of regulated routine patient observations and record-keeping during the early postoperative period at Swedish veterinary clinics, and if there are any guidelines for monitoring the veterinary patient during recovery.
Methods. A small survey including ten Swedish veterinary clinics was carried out as well as a literature review.
Results.
Produktionseffektivisering av arbetsmoment inom byggsektorn En tidsstudie för standardisering av arbetssätt
Phosphate is a used as a surface treatment method which is used for various purposes in the industry. In this case, phosphate coated wire is used in the processes to achieve a desirable outcome. The reason to why phosphate coated wire is used in the production process is because phosphate acts as an accumulator, where it stabilizes the lubricant on the surface of the wire. Lubrication is important because it plays a major role in the roll quality and characterizes important benefits regarding the outcome.Currently, SKF has to wash away all phosphates residues after extrusion process in an operation called tumbling. The main reason for this is simply because the surface has to be completely free from lubricants and coatings till the next step of process.
Mixture and single-compound toxicity using Daphnia magna : comparisons with estimates of concentration addition and independent action
Aquatic organisms are usually not exposed to single substances but rather to mixtures of toxicants in streams located in agricultural areas. The transport of pesticides used in the agricultural area in Sweden is monitored with continuous environmental supervision every year. During 2002-2008 an average of 10 pesticides were found in each sample and 40% of the samples contained substances with concentrations higher than the Water Quality Standards. Chemical risk management is normally based on single-test evaluations. A problem when assessing mixture toxicities is that the constituents and concentrations of pollutants in the environment vary greatly.
ICA:s köttfärsskandal - ett år senare : En studie om konsumenters tillit till ett starkt varumärke efter en produktkris
This thesis aims to through certain parts of the brand equity investigate the trust of consumers for a brand that recently experienced a product-harm crisis. It also wants to investigate why this trust exist, if it does. Structured interviews were carried out at 60 respondents in Uppsala. The results show that the respondents have positive associations with ICA, they think that ICA maintains a high quality on their products and services and that 50% more often choose to do their grocery shopping at ICA. The conclusion of the study is that ICA has a strong brand equity resulting in brand trust from consumers, which is founded in the brand reliability and brand intentions of the company. .